studio 4 via jtag interface clears device EEPROM and EESAVE

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fabrizio
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Location: Ham Belgium
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Posted by fabrizio: Sun. Dec 12, 2004 - 10:13 PM
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Hei all,

Device : ATMEGA16
Studio4 : V 4.08 build 310
Interface to device : JTAG-ICE

Situation
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Device is loaded with a program and also with valid EEPROM data. The EESAVE fush
is programmed, meaning that EEPROM data is preserved on a chip Erase.

Next i Start up Studio4 and load the Project-name_cof.aps file produced by Imagecraft
c-compiler.

Problem
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After studio4 is initialised and the device is stopped, i notice that the EEPROM contents
is erased, all FF's, and that the EESAVE flag is unprogrammed ???

I need help to get out of this one.

Regards,
Fabrizio.

Tags:

Tools, Atmel Studio (AVR-related)
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fabrizio
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Level: Wannabe
Joined: Tue. Nov 4, 2003
Posts: 81 View posts
Location: Ham Belgium
Posted by fabrizio: Mon. Dec 13, 2004 - 09:15 PM
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Solution Found.

When Studio4 is loaded with the Project-name_cof.aps file produced by Imagecraft
c-compiler. Select the Menu item Debug | Jtag-ICE options | Debug

Check the Selection box "Preserve EEPROM contents when reprograming device"

Apply your changes.

This will prevent the EEPROM in the device, and The EESAVE-fush, to be cleared when
Studio4 reprograms the device.

Fabrizio.

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